I think "the hottest" would be "totally uncool" by definition. Here are a few projects, many unmaintained, which qualify: https://www.archlinux.org/packages/c

I think "the hottest" would be "totally uncool" by definition. Here are a few projects, many unmaintained, which qualify: https://www.archlinux.org/packages/community/x86_64/cpuburn/ https://www.archlinux.org/packages/community/x86_64/cpuburn/ https://core-electronics.com.au/tutorials/stress-testing-your-raspberry-pi.html https://core-electronics.com.au/tutorials/stress-testing-you... https://packages.debian.org/jessie/cpuburn https://packages.debian.org/jessie/cpuburn https://github.com/patrickmn/cpuburn https://github.com/patrickmn/cpuburn http://manpages.ubuntu.com/manpages/trusty/man1/cpuburn.1.html http://manpages.ubuntu.com/manpages/trusty/man1/cpuburn.1.ht... https://patrickmn.com/projects/cpuburn/ https://patrickmn.com/projects/cpuburn/